Blends of substantially random interpolymers with enhanced thermal performance
OwnerYunwa Wilson Cheung, Samuel Ethiopia +2inventors
InventorsYunwa Wilson Cheung, Samuel Ethiopia, Martin James Guest, Pak-Wing S. Chum
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Abstract
The present invention pertains to immiscible blends of two or more α-olefin/vinyl aromatic monomer interpolymers, the blend having at least one interpolymer component which comprises 2 to 7 mole percent vinyl aromatic monomer content, and uses for such blends. The blend components are selected to provide superior processability and/or performance, such as upper use temperature, in the blend compositions and in their end use applications.
Claims17
An immiscible blend of two or more substantially random interpolymers comprising 5 to 95 weight percent of at least one substantially random interpolymer having an overall crystallinity (as measured by differential scanning calorimetry) of at least 20 wt percent, said interpolymer comprising:
- a) from 2 to 7 mole percent of one or more vinyl aromatic monomers and
- b) the balance comprising ethylene;
- or a combination of ethylene and at least one or more C3 to C20 α-olefin monomers, and
- c) optionally other olefin monomers
Dependencies are inferred from the claim text.